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/*
* (C) Copyright 2011 - Franck JULLIEN <elec4fun@gmail.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <stdio.h>
#include <common.h>
#include <asm/nios2-io.h>
#include <io.h>
void early_putc(char ch)
{
struct nios_uart *uart = (struct nios_uart *)NIOS_SOPC_UART_BASE;
while ((readl(&uart->status) & NIOS_UART_TRDY) == 0);
writel((unsigned char)ch, &uart->txdata);
}
void early_puts(const char *s)
{
while (*s != 0)
early_putc(*s++);
}
int early_printf(const char *fmt, ...)
{
va_list args;
uint i;
char printbuffer[50];
va_start(args, fmt);
i = vsprintf(printbuffer, fmt, args);
va_end(args);
early_puts(printbuffer);
return 0;
}
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